MATH1280 Statistics 1 Learning journal UNIT3
Grades 10/0-10
1. Learning Journal Reflective Comments:
Write short reflective comments or notes about your learning activities during the week. It is highly recommended that you make these entries on a daily basis. You will be assessed on the completeness of your Learning Journal, and the quality of your self-reflection.
You should date each entry, and use clear titles and sub-headings. These entries should be brief, direct sentences indicating quick comments or notes such as:
* when you completed each step in the Learning Guide during the week,
* any problems or unexpected events that occurred during the week (including problems understanding new or old material), and
* any other noteworthy that might affect your performance in this class.
There is no need to include personal information or details of family events, but be sure to mention the existence of any situations that will positively or negatively affect your ability to focus on the classwork.
2. Vocabulary and R functions
a) Enter the following command in R to read a simple help page about the length() command:
?length
What does the length function tell you?
b) Read section 3.4 about Measures of the Spread of Data. In your own words, give a rough description of what variance is (we will go into more detail in the next few weeks). Include an APA citation.
3. Task
Estimate how many hours you spent on this class in the past week, then list the days and times when you will spend an extra 3 hours to study during week 4 and beyond. Units 4 and beyond often require more study than the first few weeks did, but if you prepare your schedule, you can improve your chance of success.
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1. Learning Journal Reflective Comments:
7/2
reading the learning guide
reading textbook chapter 3
7/4
Understanding vocabulary
Practicing some examples to display data using R program.
7/5
Applying to discussion forum
7/6
Attempting self quizzes again and again
Attempting the graded quiz
7/7
Applying to Learning Journal
2. Vocabulary and R functions
a) What does the length function tell you?
The length function sets "the length of vectors (including lists) and factors, and of any other R object for which a method has been defined" (1, para.1). In other words, the length function tells us how many arguments are in a data set and it shows the length of a vector
b) Read section 3.4 about Measures of the Spread of Data. In your own words, give a rough description of what variance is (we will go into more detail in the next few weeks). Include an APA citation.
Variance measures spread of data of a sequence from mean values.
3. Task
Estimate how many hours you spent on this class in the past week, then list the days and times when you will spend an extra 3 hours to study during week 4 and beyond. Units 4 and beyond often require more study than the first few weeks did, but if you prepare your schedule, you can improve your chance of success.
Reading textbook → 3-4 hours
Practicing using the R program → 1-2 hours
Discussion forum→ 1 hour
Learning journal → 1 hour
Review → 1-2 hours
Total → almost 10 hours
I can take more time on weekends. I am also taking other courses but I will take more time for this course after next week.
Thank you, professor. Have a nice day:)
References
R Documentation. (n.d.). Length of an Object. Retrieved from http://127.0.0.1:19561/library/base/html/length.html
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